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58 lines
2.1 KiB
58 lines
2.1 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.hardware.graphics.allocator@2.0;
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import android.hardware.graphics.mapper@2.0;
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interface IAllocator {
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/**
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* Retrieves implementation-defined debug information, which will be
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* displayed during, for example, `dumpsys SurfaceFlinger`.
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*
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* @return debugInfo is a string of debug information.
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*/
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@entry
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@exit
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@callflow(next="*")
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dumpDebugInfo() generates (string debugInfo);
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/**
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* Allocates buffers with the properties specified by the descriptor.
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*
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* @param descriptor specifies the properties of the buffers to allocate.
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* @param count is the number of buffers to allocate.
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* @return error is NONE upon success. Otherwise,
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* BAD_DESCRIPTOR when the descriptor is invalid.
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* NO_RESOURCES when the allocation cannot be fulfilled at this
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* time.
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* UNSUPPORTED when any of the property encoded in the descriptor
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* is not supported.
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* @return stride is the number of pixels between two consecutive rows of
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* the buffers, when the concept of consecutive rows is defined.
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* Otherwise, it has no meaning.
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* @return buffers is an array of raw handles to the newly allocated
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* buffers.
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*/
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@entry
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@exit
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@callflow(next="*")
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allocate(BufferDescriptor descriptor, uint32_t count)
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generates (Error error,
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uint32_t stride,
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vec<handle> buffers);
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};
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